The scope and extent and boundaries of "everything we need for life and godliness" was provided for us here on earth and into life eternity. "Everything" meant every--thing, including all, nothing is exempted. It speaks of our whole life, body, soul and spirit.
The Holy Spirit teaches us about God. God has given us the Holy Spirit to teach us to know Him deeply & intimately. So we have no reason not to know God intimately. The Bible has been provided for us and through the guidance of the Holy Spirit, revelations about Who God is, will be very clear to us and we can directly communicate with God through our devotional or prayer times.